| MEGA BIG NORMS WARSAW SUMMER '26 IM ROUND-ROBIN - B | 2026-08-27 2026-08-31 | Warszawa · POL | Classical | 10 |
| MEGA BIG NORMS WARSAW SUMMER '26 IM ROUND-ROBIN - A | 2026-08-27 2026-08-31 | Warszawa · POL | Classical | 10 |
| 2026 August-September Marshall Thursday Open Round 3-6 | 2026-08-27 2026-09-17 | New York, NY · USA | Classical | 23 |
| IV Campeonato Brasileiro Uniao De Xadrez Das Forcas Armadas e De Seguranca Publica 2026 | 2026-08-27 2026-08-30 | Goiania GO · BRA | Classical | 27 |
| 35. Wiesbadener Schlosspark-Open 2026 | 2026-08-27 2026-08-30 | Wiesbaden-Biebrich · GER | Classical | 185 |
| Open C Bischwiller 2026 | 2026-08-27 2026-08-30 | BISCHWILLER · FRA | Classical | 23 |
| Open B Bischwiller 2026 | 2026-08-27 2026-08-30 | BISCHWILLER · FRA | Classical | 13 |
| Open A Bischwiller 2026 | 2026-08-27 2026-08-30 | BISCHWILLER · FRA | Classical | 24 |
| Scherer Masters 2026 | 2026-08-27 2026-09-06 | Joacaba SC · BRA | Classical | 10 |
| II Torneo Movimiento Maestro Grupo B | 2026-08-26 2026-09-20 | Estdado de Mexico · MEX | Classical | 7 |
| II Torneo Movimiento Maestro Grupo A | 2026-08-26 2026-09-20 | Estdado de Mexico · MEX | Classical | 7 |
| Torneo Cerrado de Ajedrez Capablanca Grupo Premier | 2026-08-26 2026-08-28 | CHH, Chihuahua · MEX | Classical | 7 |
| Odense Skakklub Onsdags Efteraar 2026 - 2 | 2026-08-26 2026-09-30 | Odense · DEN | Classical | 10 |
| Odense Skakklub Onsdags Efteraar 2026 - 1 | 2026-08-26 2026-09-30 | Odense · DEN | Classical | 10 |
| Satka Mayor Cup 2026 rapid | 2026-08-26 2026-08-27 | Satka · RUS | Rapid | 183 |
| Alta Klubbmesterskap Hurtigsjakk 2026 | 2026-08-26 2026-09-16 | Alta · NOR | Rapid | 15 |
| National Youth Chess Elite Championship 2026 - Standard Open U20 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 10 |
| National Youth Chess Elite Championship 2026 - Standard Open U17 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 8 |
| National Youth Chess Elite Championship 2026 - Standard Open U15 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 22 |
| National Youth Chess Elite Championship 2026 - Standard Open U13 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 39 |
| National Youth Chess Elite Championship 2026 - Standard Open U11 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 30 |
| National Youth Chess Elite Championship 2026 - Standard Open U10 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 27 |
| National Youth Chess Elite Championship 2026 - Standard Open U9 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 33 |
| National Youth Chess Elite Championship 2026 - Standard Open U8 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 19 |
| National Youth Chess Elite Championship 2026 - Standard Open U7 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 20 |
| National Youth Chess Elite Championship 2026 - Standard Open U6 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 16 |
| National Youth Chess Elite Championship 2026 - Standard Girls G20 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 11 |
| National Youth Chess Elite Championship 2026 - Standard Girls G17 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 13 |
| National Youth Chess Elite Championship 2026 - Standard Girls G15 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 16 |
| National Youth Chess Elite Championship 2026 - Standard Girls G13 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 26 |
| National Youth Chess Elite Championship 2026 - Standard Girls G11 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 22 |
| National Youth Chess Elite Championship 2026 - Standard Girls G06 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 12 |
| Aria Standard U18 Rated Cup 1405 | 2026-08-26 2026-08-30 | Karaj · IRI | Classical | 83 |
| 18th Open Blitz G Ioakeimidis 2026 | 2026-08-26 2026-08-26 | Thessaloniki · GRE | Blitz | 73 |
| Nordwestschweizer Einzelmeisterschaft Kat B 2026 Round 1-3 | 2026-08-26 2026-09-23 | Therwil · SUI | Classical | 33 |
| Nordwestschweizer Einzelmeisterschaft Kat A 2026 Round 1-3 | 2026-08-26 2026-09-23 | Therwil · SUI | Classical | 23 |
| Nordwestschweizer Einzelmeisterschaft Kat M 2026 Round 1-3 | 2026-08-26 2026-09-23 | Therwil · SUI | Classical | 8 |
| BSW Schachmeisterschaften 2026 Schnellturnier | 2026-08-26 2026-08-26 | Karlstadt · GER | Rapid | 18 |
| Sri Lanka National Team Chess Championship 2026 - Super League | 2026-08-26 2026-08-30 | Colombo · SRI | Classical | 80 |
| Standard. First Individual-Team Asian Chess Festival 2026 | 2026-08-26 2026-08-28 | Vladivostok · RUS | Classical | 20 |
| National Youth Chess Elite Championship 2026 - Standard Girls G07 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 15 |
| National Youth Chess Elite Championship 2026 - Standard Girls G08 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 14 |
| National Youth Chess Elite Championship 2026 - Standard Girls G09 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 22 |
| National Youth Chess Elite Championship 2026 - Standard Girls G10 | 2026-08-26 2026-08-31 | Quang Tri · VIE | Classical | 15 |
| Hillerod Midtspil 1 - 5 Round 1-4 | 2026-08-26 2026-09-23 | Hillerod · DEN | Classical | 5 |
| Hillerod Midtspil 1 - 4 Round 1-4 | 2026-08-26 2026-09-23 | Hillerod · DEN | Classical | 6 |
| Hillerod Midtspil 1 - 3 Round 1-4 | 2026-08-26 2026-09-23 | Hillerod · DEN | Classical | 6 |
| Hillerod Midtspil 1 - 2 Round 1-4 | 2026-08-26 2026-09-23 | Hillerod · DEN | Classical | 6 |
| Hillerod Midtspil 1 - 1 Round 1-4 | 2026-08-26 2026-09-23 | Hillerod · DEN | Classical | 6 |
| S: Morihana Wellness Chess Tour Croatia-Hotel MARINA Selce International Chess Tournament Series | 2026-08-26 2026-08-30 | Selce · CRO | Classical | 25 |